HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 127

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 6.4
Conditions: V
Item
External clock output stabilization
delay time
Note: * t
6.2.2
If an external crystal is connected across the EXTAL and XTAL pins, the on-chip oscillator circuit
generates a system clock signal. Alternatively, an external clock signal can be applied to the
EXTAL pin.
Connecting an External Crystal
Circuit Configuration: An external crystal can be connected as in the example in figure 6.8.
Table 6.5 indicates the appropriate damping resistance Rd. An AT-cut parallel resonance crystal
should be used.
V
STBY
EXTAL
ø (internal and
external)
RES
Note: * t
CC
DEXT
Oscillator Circuit (H8/3437S)
2.7 V
includes a 10 t
DEXT
External Clock Output Stabilization Delay Time
V
CC
IH
Figure 6.7 External Clock Output Stabilization Delay Time
includes a 10 t
= 2.7 to 5.5 V, AV
cyc
RES pulse width (t
cyc
RES pulse width (t
CC
= 2.7 to 5.5 V, V
Symbol
t
DEXT
t
DEXT
*
RESW
*
).
RESW
Min
500
SS
= AV
).
SS
Max
—
= 0 V
Unit
s
Notes
Figure 6.7
95